Method of independent drums control in the system of cableway carriages in superimposed time

ABSTRACT

The method of independent control of the drum of the load lifting/lowering line or the main line in each carriage in the system of cableway carriages which are driven by an endless line or by a movable line that rotates or moves in an optional direction, so that in each cableway carriage the drum is controlled independently in superimposed time, and the operation of each cableway carriage is independent from the other carriages in the system of the cableway carriages, while the way of the load lifting/lowering line or the main line drum control in the cableway carriage system is assured by the endless line ( 3 ) or by the movable line ( 3 ), which rotates or moves in the cableway system in the same direction (optional according to the needs); the drive of the drum is actuated, according to the needs, in all carriages through which the endless line ( 3 ) or the movable line ( 3 ) passes; in each carriage the endless line ( 3 ) or the movable line ( 3 ) actuates the rotation of the sheave ( 9 ) in the direction of the rotation or movement of the endless line ( 3 ) or the movable line ( 3 ); in each carriage the main operation of the drum ( 6 ), the brake mode of the drum ( 6 ) and the reverse mode of the drum ( 6 ) are actuated by the rotation of the sheave ( 9 ); in each carriage the main operation of the drum ( 6 ), the brake mode of the drum ( 6 ) and the reverse mode of the drum ( 6 ) are realized independently from the other carriages according to the requirements; the unwinding of the line ( 5 ) from the drum ( 6 ) and the winding of the line ( 5 ) onto the drum ( 6 ) is controlled independently in each cableway carriage in the system of cableway carriages by the main operation of the drum ( 6 ), the brake mode of the drum ( 6 ) and the reverse mode of the drum ( 6 ).

TECHNICAL FIELD

The subject matter of the invention is the method of independent control of the line that is used for lifting and lowering a load—hereinafter referred to as: the load lifting/lowering line—or the main line in each carriage in the system of cableway carriages which are driven by an endless or a movable line that rotates or moves in the same direction, which can be optional according to the needs. Each cableway carriage contains a drum which is controlled independently in superimposed time while the operation of each cableway carriage is independent from that of the other carriages in the system of cableway carriages. The method of independent drum control in individual cableway carriages in superimposed time by means of an endless or movable line can mainly be used in the field of special devices with an energy accumulator, which are called RELAZ. The invention can also be widely applied in the field of long distance cableways, curved cableways, and when several cableway carriages are used on one cableway or more cableways, which is suitable for load transport in the fields of forest management, agriculture, civil engineering and cableway transport in general.

BACKGROUND OF ART

Existing well-known standard methods of the load lifting/lowering line or the main line drum control do not allow an effective operation of more carriages in superimposed time on the skyline or more skylines, or on one cableway or several cableways which are driven by an endless line or by a movable line. The existing well-known standard solutions in the area of drum control do not allow an independent use of the main operation of the drum, the brake mode of the drum and the reverse mode of the drum in connection with unwinding and winding of the load lifting/lowering line or the main line from/onto the drum in more carriages, in such a way that each carriage in the system of cableway carriages is driven by one and the same endless line without the change in rotation direction or movement in the, endless line system. The existing well-known methods of drum control for active unwinding and winding of the load lifting/lowering line or the main line do not allow the independence of each cableway carriage from the other cableway carriages which are driven by an endless line or a movable line.

Today, there exists a solution according to PP 37-2088, which is called Mechanical Recuperation Cableway Device with Added Sectional Counterweight and Gravitational Cableway Carriage. In this technical solution, the drum of the load lifting/lowering line or the main line in the carriage is controlled by one endless line; however, this does not enable effective independent control of the drums in individual parts of the carriage during endless line rotation or movement in one direction in the endless cableway system.

This solution and all the existing methods of drum control do not allow effective control of the drum for unwinding and winding of the line load lifting/lowering line or the main line, and do not facilitate effective operation of several cableway carriages on a cableway in superimposed time, in such a way that the carriages are driven by an endless line or by a movable line, which moves in the same direction. This direction can be optional according to the needs, while each carriage in the cableway carriage system works effectively and independently from the other carriages in the system of cableway carriages.

DISCLOSURE OF THE INVENTION

The subject matter of the invention is a method for controlling the drum of the load lifting/lowering line or the main line in each cableway carriage in a system of cableway carriages. These cableway carriages operate on one or several skylines or on one cableway or several cableways, are driven independently and their functions are supported by the motion of an endless or movable line. The endless line in an endless cableway system or the movable line in a cableway system rotates or moves only in one direction, which can be arbitrary, according to the needs. One endless line or a movable line, which rotates or moves in a cableway system in the same direction according to the needs, provides the drive of drums by means of a disconnectable sheave in all cableway carriages through which the endless line or the movable line passes. The disconnectable sheave is provided with a parabolic groove.

The rotation of the disconnectable sheave, always rotating in the direction of the endless or movable line rotation or movement, is in each cableway carriage in a cableway carriage system actuated by means of the endless line or the movable line. The main operation of the cable drum, the neutral operation of the carriage or the brake mode of the drum, and the reverse mode of the drum in each cableway carriage in the cableway carriage system are actuated by the rotation or movement of the endless or movable line, which rotates or moves only in one direction, arbitrary according to the requirements. The main operation of the drum in the cableway carriage is actuated when the drum of the load lifting/lowering line, or the main line is rotating in the same direction as is the direction of the disconnectable sheave rotation and the direction of the rotation of the endless line in the endless cableway system or the movable line in the cableway system. The brake mode of the drum in the cableway carriage is achieved when the endless line in the endless cableway system or the movable line in the cableway system rotates or moves, and the drum of the load lifting/lowering line or the main line drum is locked. The brake mode of the drum is realized during the neutral mode of the carriage. The reverse mode of the drum in the cableway carriage is achieved when the drum of the load lifting/lowering line or the main line drum rotates in the opposite direction to the direction of the disconnectable sheave rotation and also to the direction of the endless line rotation in the endless cableway system or the movable line rotation in the cableway system. In each carriage in the system of cableway carriages the main operation of the cable drum, the brake mode of the drum or the neutral mode of the carriage and the reverse mode of the drum are realized according to the needs, independently from the other carriages. In this way, effective operation of several cableway carriages in the system of cableway carriages in superimposed time is assured by means of the endless or the movable line, which rotates or moves always in one direction, which may be arbitrary according to the requirements.

The main operation, the brake mode and the reverse mode of the drum control the unwinding and winding of the load lifting/lowering line or the main line from/onto the drum in each cableway carriage independently in the entire system of cableway carriages. The system of cableway carriages is controlled by the movement of the endless or the movable line that moves in one direction, which can be arbitrary according to the needs in the cableway system. The unwinding and winding of the load lifting/lowering line or the main line depends on the direction in which the load lifting/lowering line or the main line is wound on the drum. During the neutral operation of the carriage or the brake mode of the drum, unwinding and winding of the load lifting/lowering line or the main line from/onto the drum in the carriage is not performed. The endless cableway system or the cableway system with a movable line is tensioned to the necessary assembly tension using an appropriate means.

As for the type of construction, the drum for unwinding and winding of the load lifting/lowering line or the main line can be manufactured as any device for any line which serves for unwinding and winding or it can also be a winding device, a winch, and the like.

According to the invention, the advantage of this method is that unwinding of the line from the drum in the carriage enables active drawing out of the free end of the load lifting/lowering line or the main line from the carriage. Each carriage in the system of cableway carriages can perform the function of active drawing out of the free end of the line load lifting/lowering line or the main line from the carriage.

As for the type of construction, the cableway carriage can be a carriage for a forest cableway or a carriage for any other cableway.

The independent drum control in the system of cableway carriages in superimposed time is achieved by the rotation or movement of the endless line in the endless cableway system or by the movement of the movable line in the cableway system. When using the endless line or the movable line for independent control of drums in each carriage in the system of cableway carriages, the endless line or the movable line in the drive aggregate passes through a sheave or sheaves or through an appropriately adapted winding device.

In on of the versions, when using the endless line or the movable line for independent control of drums in each carriage in the system of cableway carriages, the movable line in the drive aggregate passes through a winding device or devices. In another version, the movable line in the line system moves so that it unwinds from one winding device and winds onto the second winding device and/or the other way round. The guidance and drive of the endless line or the movable line can be realized by various means, according to the needs.

The above mentioned facts indicate that the method of independent control of the drum of the load lifting/lowering line or the main line in each carriage in the system of cableway carriages in superimposed time by means of an endless line or a movable line in a cableway system, which rotates or moves, in one direction, which can be arbitrary according to the needs, has a wide application. The possibilities for the use of this method do not limit the range of the utilization of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The attached drawings illustrate the method for the control of the drum of the load lifting/lowering line or the main line in each carriage in the system of cableway carriages. These carriages are driven by an endless line or a movable line which rotates or moves in the same direction which can be arbitrary according to the needs, so that in each carriage the drum is independently controlled in superimposed time, while the operation of each cableway carriage does not depend on the operation of the other carriages in the system of cableway carriages.

FIG. 1—illustrates the method of independent control of the drum of the load lifting/lowering line or the main line in each carriage in the system of cableway carriages,

FIG. 2—illustrates the method of independent control of the drum of the load lifting/lowering line or the main line in each carriage in the system of cableway carriages on one skyline,

FIG. 3—illustrates the method of independent control of the drum of the load lifting/lowering line or the main line in each carriage in the system of cableway carriages on several skylines.

DETAILED DESCRIPTION OF THE INVENTION

FIG. 1 illustrates the way of controlling the drum 6 of the load lifting/lowering line or the main line 5 in each carriage in the system of cableway carriages. The system of cableway carriages is driven by the endless line 3 or by the movable line 3 which rotates or moves in the cableway system in the same direction, which can be optional depending on the needs. The rotation or movement of the endless line 3 or the movement of the movable line 3 controls the drum 6 independently in each cableway carriage, so that the operation of each cableway carriage does not depend on the operation of the other cableway carriages which operate in the system of cableway carriages. The main operation of the drum 6 is realized in such a way that the disconnectable sheave 9 in the carriages is driven by the endless line 3 or the movable line 3 in the same direction as is the direction of rotation or movement of the endless line 3 in the endless cableway system or the movable line 3 in the cableway system. When the main drum 6 operation is necessary in the carriages in the system of cableway carriages, the clutch 2 is locked and the braking coupling device or the brake 13, 14 is unlocked. This enables the transmission of the torque in the same direction from the disconnectable sheave 9 to the drum 6 of the load lifting/lowering line or the main line. In this case the drum 6 rotates in the same direction as is the direction of rotation of the disconnectable sheave 9 and the endless line 3 or the movable line 3 which assures the main operation of the drum 6. The brake mode of the drum is used in such a way that the disconnectable sheave 9 in the carriages is driven by the endless or movable line 3 in the same direction as is the direction of the rotation or movement of the endless line 3 in the endless cableway system, or in the direction of the movement of the movable line 3 in the cableway system. In the carriages in the system of cableway carriages, where the brake mode is required, the clutch 2 and the braking coupling device or brake 14 is unlocked and the braking device or brake 13 is locked. This provides for rotary movement of the endless line 3 in the endless cableway system or the movement of the movable line 3 in the cableway system while the torque from the disconnectable sheave 9 is not transmitted to the drum 6 of the load lifting/lowering line or the main line. In this case the drum 6 is locked without motion by means of the braking coupling device or brake 13 and the disconnectable sheave 9 rotates in the same direction as is the direction of rotation or movement of the endless or movable line, which brings the drum 6 to the brake mode. The reverse mode of the drum 6 is realized as follows: the disconnectable sheave 9 in the carriages is driven by means of the endless line 3 or the movable line 3 in the same direction as is the direction of the rotation or movement of the endless line 3 in the endless cableway system or the movable line 3 in the cableway system. In the carriages of the system of cableway carriages, where the reverse mode of the drum 6 is required, the clutch 2 is unlocked, the braking coupling device or the brake 14 is locked and the braking coupling device or the brake 13 is unlocked. This sets the reverse mode 27 of the drum 6 while the torque from the disconnectable sheave 9 is transmitted in the opposite direction of rotation to the drum 6. In this case, the drum 6 of the load lifting/lowering line or the main line rotates in the opposite direction to that of the disconnectable sheave 9, and this provides for the reverse mode of the drum 6. During the control of the drum 6 of the load lifting/lowering line or the main line according to the needs in each carriage in the system of cableways carriages the brake 15 of the skyline is locked. If there is a need for a carriage movement on the skyline 1 during the drum 6 control, the brake 15 of the skyline is unlocked. The control of the drum 6 by means of the main operation of the drum 6, the brake mode and the reverse mode of the drum 6 actuate the unwinding and winding of the load lifting/lowering line or the main line 5 which is wound on the drum 6 in the required direction.

FIG. 2 illustrates the method for controlling the drum 6 of the load lifting/lowering line or the main line 5 in each carriage in the system of the cableway carriages on one skyline 1, or on one cableway. In this case the endless line 3 in the endless cableway system or the movable line 3 in the cableway system rotates or moves anticlockwise while the first cableway carriage 7 _(a), according to the invention, is operating in the neutral mode of the carriage or in the brake mode of the cable drum 6 _(a). The brake mode of the drum 6 _(a) is actuated by unlocking the clutch 2 _(a), the braking coupling device or the brake 14 _(a) and by locking the braking coupling device or the brake 13 _(a), which provides for the rotary movement of the endless line 3 in the endless cableway system or the movement of the movable line in the cableway system while the torque from the disconnectable sheave 9 _(a) is not transmitted to the drum 6 _(a). During the brake mode of the drum 6, the unwinding and winding of the load lifting/lowering line or the main line is not actuated. Simultaneously, in superimposed time, the main operation of the drum 6 _(b) is actuated in the cableway carriage 7 _(b) which is in an arbitrary distance from the cableway carriage 7 _(a). The main operation of the drum 6 _(b) is accomplished by locking the clutch 2 _(b) and unlocking the braking coupling device or the brake 13 _(b), 14 _(b) while the torque from the disconnectable sheave 9 _(b) is transmitted to the drum 6 _(b) in the same direction. During the main operation of the drum 6 _(b), the load lifting/lowering line or the main line 5 _(b) is unwound. Simultaneously, in superimposed time, the reverse mode of the drum 6 _(c) is actuated in another cableway carriage 7 _(c) which is in an arbitrary distance from the cableway carriage 7 _(b). The reverse mode of the drum 6 _(c) is accomplished by locking the braking coupling device or brake 14 _(c), by unlocking the clutch 2 _(c) and by unlocking the braking coupling device or brake 13 _(c) while the torque from the disconnectable sheave 9 _(c) is transmitted in the opposite direction of rotation to the cable drum 6 _(c). In this case, during the reverse mode of the drum 6 _(c) the winding of the load lifting/lowering line or the main line 5 _(c) is actuated. During this way of drum control of the load lifting/lowering line or the main line in each carriage of the system of cableway carriages the brakes 15 _(a), 15 _(b), 15 _(c) on the skyline 1 are locked. In this way, several cableway carriages operating in superimposed time on one skyline or on one cableway can be controlled by means of the endless or the movable line which does not have to change the direction of rotation or movement in the cableway system.

FIG. 3 illustrates the way of controlling the drum 6 of the load lifting/lowering line or the main line 5 in each carriage of the cableway carriage system according to this invention on several skylines or on several cableways or on several skylines on one cableway. The endless line 3 in the endless cableway system or the movable line 3 in the cableway system rotates or moves anticlockwise and drives the drums in the entire cableway carriage system. During this rotation or movement of the endless line 3 in the endless cableway system or the movable line 3 in the cableway system, the main operation of the drum 6 _(a) is performed in the cableway carriage 7 _(a), which is locked on the skyline 1 _(a), and this actuates the unwinding of the load lifting/lowering line or the main line 5 _(a). In the cableway carriage 7 _(b), which is locked on the skyline 1 _(a), the reverse operation of the drum 6 _(b) actuates the winding of the load lifting/lowering line or the main line 5 _(b). On the other skyline 1 _(b), in the carriage 7 _(c), the neutral operation of the carriage or the brake mode of the drum 6 _(c) is actuated, which assures the rotation or movement of the endless line 3 in the endless cableway system or the movement of the movable line 3 in the cableway system, but the unwinding and winding of the load lifting/lowering line or the main line is not performed. In the cableway carriage 7 _(d), which is locked on the skyline 1 _(b), the reverse operation of the drum 6 _(d) is actuated, which causes the winding up of the load lifting/lowering line or the main line 5 _(d). In this way, according to this invention, the drums 6 _(a), 6 _(b), 6 _(c), 6 _(d) in the system of cableway carriages are independently controlled in superimposed time, while the direction of rotation or movement of the endless line 3 in the endless line in the endless cableway system or the direction of movement of the movable line 3 in the cableway system does not change.

The advantage of the independent control of the drum of the load lifting/lowering line or the main line in every carriage in the system of cableway carriages by means of the endless line or the movable line which rotates or moves always in one direction, optional according to the requirements, is effective work of several carriages in superimposed time.

The main operation, the brake mode and the reverse mode of the drum can be provided independently according to the requirements in each cableway carriage in the cableway carriage system during the rotation or movement of the endless line or the movement of the movable line in one direction which is optional according to the needs. In this case, the reverse system for the endless line in a driving aggregate can be left out and the direction of the rotation or movement of the endless line in the endless cableway system assuring the unwinding and winding of the load lifting/lowering line or the main line from/onto the drum in the carriage does not require any change.

The advantage of this method according to this invention is that the movement of the endless or the movement of the movable line in the cableway system controls the unwinding and winding of the load lifting/lowering line or the main line independently in all cableway carriages on one or more cableways. Another advantage is that the unwinding of the line from the drum in the carriage allows active drawing out of the free end of the load lifting/lowering line or the main line from the carriage. Every carriage in the system of the cableway carriages has the function of active drawing out of the free end of the load lifting/lowering line or the main line from the carriage.

The advantage of this method according to the invention is that the rotation or movement of the endless line or the movement of the movable line in the cableway system controls the dragging, lifting or lowering of the load independently in all carriages on one or more cableways.

Each cableway carriage works effectively and independently from the other cableway carriages in the system of cableway carriages. Therefore, the direction of the drum rotation and thereby the independent control of unwinding and winding of the load lifting/lowering line or the main line which is wound on the drum is effectively controlled in each cableway carriage in the cableway carriage system according to the needs.

The advantage of this method according to the invention is that it can be used to control more cableway carriages on one or more cableways. This method can also be used on long cableways or curved cableways.

This invention can be effectively used for dragging, lifting, lowering, skidding or transport of wood, trees, construction material or other materials and loads in general. The invention can be effectively used in the area of forest cableways or in the area of other cable installations or in the area of lifting installations in general.

For reasons given above, the method of independent control of the drum of the load lifting/lowering line or the main line in each cableway carriage in the cableway carriage system in superimposed time by means of an endless or movable line which rotates or moves in one direction, optional according to the needs, can have many applications. The ways of use of this method do not limit the range of the utilization of the subject matter of this invention. 

1. A method of independent control of drums in a system of cableway carriages in superimposed time, characterized in that the drive and control of the drum (6) in each carriage in the system of cableway carriages is provided by clockwise or anticlockwise rotation of the endless line (3) or by movement of the movable line, which moves in optional direction so that the drum (6) for unwinding and winding of the line (5) is controlled independently in every carriage in the system of cableway carriages.
 2. A method of independent control of drums in a system of cableway carriages in superimposed time according to claim 1, characterized in that the unwinding of the line (5) from the drum (6) and winding of the line (5) onto the drum (6) is controlled independently in all carriages on one or more cableways by rotation or movement of endless line or by movement of the movable line.
 3. A method of independent control of drums in a system of cableway carriages in superimposed time according to claims 1 and 2, characterized in that the dragging of the load and/or lifting of the load or lowering of the load is controlled independently in all carriages on one or more cableways by rotation or movement of the endless line or by movement of the movable line.
 4. The method of independent control of drums in the system of cable carriages in superimposed time according to claims 1 and 2, characterized in that the rotation or movement of the endless line (3) in one optional direction independently controls the unwinding of the line (5) from the drum (6) or the winding of the line (5) onto the drum (6) in several carriages or in all carriages in the system of cable carriages in such a way that there is no need to change the direction of rotation or the direction of movement of the endless line (3).
 5. The method of independent control of drums in the system of cable carriages in superimposed time according to claim 1, characterized in that the drum (6) for unwinding and winding of the line (5) is controlled separately and independently in all carriages in the system of cable carriages by the movement of the moving line that passes through several carriages and moves in such a way that it is unwound from one winding device and wound onto the other winding device, and vice versa.
 6. A method of independent control of drums in a system of cableway carriages in superimposed time according to claim 1, characterized in that the drum (6) for unwinding and winding of the line (5) is controlled independently in every carriage in the system of carriages by rotation or by movement of the endless line (3), which moves in the endless line system.
 7. A method of independent control of drums in a system of cableway carriages in superimposed time according to claim 1, characterized in that a) the propulsion of the cable drums (6) in all carriages through which the endless line (3) or the movable line passes is realized by rotation or movement of the endless line (3) or the movable line, b) in each carriage the rotation of the sheave (9) in the direction of the rotation or movement of the endless line (3) or the movable line is realized by rotation or by movement of the endless line (3) or by movement of the movable line, c) in each carriage the main operation of the drum (6), the brake mode of the drum (6) and the reverse mode of the drum (6) are realized by rotation of the sheave (9) independently from the other cableway carriages, d) unwinding of the line (5) from the drum (6) and winding of the line (5) onto the drum (6) is independently controlled by the main operation of the drum (6), the brake mode of the drum (6) and the reverse mode of the drum (6) in each carriage of the endless cableway system or in the cableway system.
 8. A method of independent control of drums in a system of cableway carriages in superimposed time according to claim 7, characterized in that a) the sheave (9) in the carriage or in the carriages is driven by the endless line (3) or by the movable line in the same direction as is the direction of the rotation or movement of the endless line (3) in the endless line system or as is the direction of the movement of the movable line in the cableway system. b) the torque is transferred in the same direction from the sheave (9) to the drum (6) by locking the clutch (2), unlocking the brake (13) and unlocking the brake (14) in the carriage or in the carriages, c) the sheave (9) rotates in the same direction as is the direction of the rotation of the drum (6), by which the main operation of the drum (6) is assured.
 9. A method of independent control of drums in a system of cableway carriages in superimposed time according to claim 7, characterized in that a) the sheave (9) in the carriage or in the carriages is driven by the endless line (3) or by the movable line in the same direction as is the direction of rotation or movement of the endless line (3) in the endless line system or as is the direction of movement of the movable line in the cableway system, b) unlocking the clutch (2), unlocking the brake (13) and locking the brake (13) assures the rotation of the endless line (3) in the endless cableway system or the movement of the movable line in the cableway system, while the torque from the sheave (9) to the drum (6) is not transferred, c) the sheave (9) rotates in the same direction as is the direction of rotation or movement of the endless line (3) or the movable line, and the drum (6) is locked without motion, which assures the brake mode of the drum (6).
 10. A method of independent control of drums in a system of cableway carriages in superimposed time according to claim 7, characterized in that a) the sheave (9) in the carriage or in the carriages is driven by the endless line (3) or by the movable line in the same direction as is the direction of the rotation or movement of the endless line (3) or the movable line in the cableway system, b) locking the brake (14), unlocking the clutch (2), and unlocking the brake (13) in the carriage or in the carriages creates the reverse mode of the drum (6), while the torque from the sheave (9) is transferred to the cable drum (6) in the opposite direction of rotation, c) the sheave (9) rotates in the opposite direction as is the direction of the drum (6) rotation, which assures the reverse mode of the drum (6). 